Hydrogeological Exploration Design

Many years of experience in the design of hydrogeological objects shows the coexistence of two possible approaches to the design and implementation of hydrogeological objects. The first is the classical method, i.e. the building is designed and built as an exploratory hydrogeological work for the purposes of Act No. 62/1988 Coll. After verifying the yield of this work and the quality of water in it, if the use of the survey object is possible, the object will be converted into a water work in accordance with Act No. 183/2006 Coll., Or the Water Act. If the planned collection facility excavated in the first phase as an exploration work cannot be used as a waterworks, it must be disposed of or secured in accordance with geological regulations so that the results of geological work are not degraded and groundwater is not disturbed. The second type of solution is the direct projection and execution of the collection facility as a waterworks in the intentions of the building and water law, respectively. The degree of knowledge of local geological and hydrogeological conditions is therefore important for the choice of the correct procedure, which is the purpose of the institute of hydrogeological survey. Only with the knowledge of relevant hydrogeological data is it possible to design a collection facility directly as a waterworks, because the degree of risk of interconnection of individual aquifers and adverse effects on local water conditions will be acceptably low with the appropriate construction of the waterworks. If the necessary data are not available, a detailed hydrogeological survey must be carried out before the design of the drilled well as a waterworks. These works usually include not only drilling, but also a set of accompanying works such as pumping tests, regime measurement of groundwater level, laboratory analysis, etc.